Establish the identity.sin(4x) = (4 sin x cos x)(2 cos2 x - 1)
What will be an ideal response?
sin(4x) = 2 sin(2x) cos(2x) = (4 sin x cos x)(2 cos2 x - 1).
Mathematics
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Simplify.(mn)-7
A. m7n7
B. 
C. 
D. 
Mathematics
Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.8 times a number
A. 8x
B. 
C. 8 - x
D. 8 + x
Mathematics
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
- 
B. 
+ 
C. 
D. 
- 
Mathematics
The graph of an equation indicates that it has a slope of +3. If y increases 3 units, how many units does x change?
a. -9 b. -6 c. 1 d. 6 e. 9
Mathematics